A starter set of 3 Multigrade Filters of contrast grades #2, #3 & #4, for use with Ilford Multigrade and other compatible variable contrast photographic papers. The filters in this set are 3½" x 3½" (89mm x 89mm) in size to fit the filter drawers of many 35mm and medium format condenser enlargers. The filters can be easily trimmed to fit smaller filter drawers. Each filter is embossed with the grade number in the upper left corner for easy identification. For use above the lens.